/**
 * @param {string} path
 * @returns {Boolean}
 */
export function isExternal(path) {
  return /^(https?:|mailto:|tel:)/.test(path)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUsername(str) {
  const valid_map = ['admin', 'editor']
  return valid_map.indexOf(str.trim()) >= 0
}

/**
 * @param {string} url
 * @returns {Boolean}
 */
export function validURL(url) {
  const reg = /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/
  return reg.test(url)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validLowerCase(str) {
  const reg = /^[a-z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUpperCase(str) {
  const reg = /^[A-Z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validAlphabets(str) {
  const reg = /^[A-Za-z]+$/
  return reg.test(str)
}

/**
 * @param {string} email
 * @returns {Boolean}
 */
export function validEmail(email) {
  const reg = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
  return reg.test(email)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function isString(str) {
  if (typeof str === 'string' || str instanceof String) {
    return true
  }
  return false
}

/**
 * @param {Array} arg
 * @returns {Boolean}
 */
export function isArray(arg) {
  if (typeof Array.isArray === 'undefined') {
    return Object.prototype.toString.call(arg) === '[object Array]'
  }
  return Array.isArray(arg)
}

/**
 * @param {Object,String,Function} arg
 * @returns {Function}
 * use for element form
 */
export function validatPrices(rule, value, callback) {
  if (rule.required === false && (value === '' || value === null || value === undefined)) {
    callback()
  }
  const isPrice = /(^[1-9]\d*(\.\d{1,2})?$)|(^0(\.\d{1,2})?$)/
  if (isPrice.test(value)) {
    callback()
  } else {
    callback(new Error(rule.message || '请输入正确的价格，例：10, 10.00'))
  }
}

/**
 * @param {Object,String,Function} arg
 * @returns {Function}
 *  use for element form
 */
export function validateMobile(rule, value, callback) {
  if (!/^1[3456789]\d{9}$/.test(value)) {
    callback(new Error(rule.message || "请输入正确的手机号"));
  } else {
    callback();
  }
}

/**
 * @param {Object,String,Function} arg
 * @returns {Function}
 *  use for element form
 */
export function validatePassword(rule, value, callback) {
  // 请输入8位以上密码,数字,字母,字符至少包含两种,不能包含中文和空格
  const isPassword = /(?!^[0-9]+$)(?!^[A-z]+$)(?!^[^A-z0-9]+$)^[^\s\u4e00-\u9fa5]{8,}$/
  if (value != '') {
    if (!isPassword.test(value)) {
      callback(new Error(rule.message || "密码至少8位数，字母/数字及标点符号至少两种"));
    } else {
      callback();
    }
  } else {
    callback();
  }
}
